Cita APA

Hall, J. L. 1., & Brown, M. J. (1981). Online bibliographic databases: An international directory Aslib ; distributed by Gale Research Co..

Citación estilo Chicago

Hall, J. L. 1938-, and Marjorie J. Brown. Online Bibliographic Databases: An International Directory. 2nd. ed. London : Detroit, Mich.: Aslib ; distributed by Gale Research Co., 1981.

Cita MLA

Hall, J. L. 1938-, and Marjorie J. Brown. Online Bibliographic Databases: An International Directory. 2nd. ed. London : Detroit, Mich.: Aslib ; distributed by Gale Research Co., 1981.